Long shot clutch help dreaming

Remember the old guy in the parts store that you walked up to holding a part in your hand and he knew exactly what it was that you needed? Or if they didn't have that exact part. He knew something that would fit the bill? I'm looking for that style of clutch guy. I have managed to either find, fix, or make everything to restore this 92 yr old vehicle back to running condition. With the exception of a clutch pressure plate. I have asked in other places I frequent with no luck to date. Anyway, I have a three finger clutch that has a 10" pressure plate. The hat sits 2.5 inches measured flat on the deck to the top of the outside of the housing. The fingers sit approximately 1/8" beyond the top deck. So the overall height would be 2 5/8". The contact points at the fingers for the throw out is 2.5 inches at the center of the bearing surface. It has 4 springs between each arm for a total of 12. Which shouldn't be a major sticking point because spring rates can be adjusted. I suppose the arm pivot ratio could be an issue but I'm sure I can adapt pedal pivot points. I can machine a new bolt circle for the flywheel. So that's easy. The motor only runs to around a top rpm of 3500 with a 350 to 400 idle rpm and it's rated to 2 tons and weighs in around 4K or more, not exactly sure. I was looking at maybe an old desoto or an m37 dodge truck clutch. I have pictures in my wordpress page under Flat head IHC HD motor build at the bottom of the page. Any guidance, ideas, or inputs would be greatly appreciated. Thanks guys.

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